Παραπομπή σε μορφή APA (7η εκδ.)

Guerrero, S. H. (1980). Impact assessment of the PUSH Project: Some notes on data collection. Philippine Center for Economic Development.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Guerrero, Sylvia H. Impact Assessment of the PUSH Project: Some Notes on Data Collection. Quezon City: Philippine Center for Economic Development, 1980.

Παραπομπή σε μορφή MLA (9th εκδ.)

Guerrero, Sylvia H. Impact Assessment of the PUSH Project: Some Notes on Data Collection. Philippine Center for Economic Development, 1980.